It means that if you multiply 't' by any number, 'x' becomes multiplied by the same number.
If you double 't', you'll find that 'x' has also doubled.
If you reduce 't' by 72.6 percent, you'll find that 'x' has also shrunk by 72.6 percent.
The greek letter "alpha" (α) for both. If x is directly proportional to y, you could say x α y. For inversely proportional, you would say something like x α 1/y, or x α y^-1, as in, directly proportional to the inverse.
Directly proportional relationship is F=ma, F is directly proportional to a. Inversely proportional relationship is v=r/t, v is inversely proportional to t.
x is inversely proportional to y when x = 1/y.
Newton's second law of motion: "The rate of change of momemtum of a body is directly proportional to the impressed force and acts in the direction in which the force is applied" If F is the force applied to a body of mass M which changes from an initial velocity of U to a final velocity of V in time T, then F is proportional to ((Mx V) - (Mx U))/T, wich is M x (V - U)/T, which is M x A (the acceleration). Hence F is proportional to M x A
If that's 4t3, that indicates that t has been cubed, which is to say it represents t x t x t.
y is inversely proportional to x if it is proportional to 1/x.
s is directly proportional to t
Generally, if y increases as x increases, this is a hint that the quantity is directly proportional, and if y decreases as x increases, the relation might be inversely proportional. However, this is not always the case. x and y are directly proportional if y = kx, where k is a constant. x and y are inversely proportional if y = k/x, k is constant. This is the best way to tell whether the quantities are directly or inversely proportional.
Various options: y is directly proportional to k, with x as the constant of proportionality; y is directly proportional to x, with k as the constant of proportionality; x is inversely proportional to k, with y as the constant of proportionality; x is directly proportional to y, with 1/k as the constant of proportionality; k is directly proportional to y, with 1/x as the constant of proportionality; and k is inversely proportional to x, with y as the constant of proportionality.
Any two non-zero quantities are always proportional. If the two quantities are X and Y, they are proportional to X/Y.
Yes. It is inversely proportional. An increase in x results in a proportional decrease in y and vice versa.
Everything. The further out the planet is, the longer the orbit. Johannes Kepler found out that the relationship between the orbital time of a planet (its 'year') is proportional to the distance it is from the sun. The actual relationship is: The time T for one orbit (the 'year') squared (i.e times by itself) is proportional to the distance D it is from the sun cubed (times by itself twice) or T x T is proportional to D x D x D so for any two planets, if the time for a 'year' of one planet is t and the distance it is from the sun is d, and the time for a 'year' of the other is T and its distance from the sun D, then T x T divided by t x t = D x D x D divided by d x d x dTherefore, if you know the distance from the sun and the time of a year for one planet, and the time for the year of another planet, you can work out the second planet's distance. Or knowing any three of the parameters, you can work out the fourth. The law still works for any object in orbit - including the moon travelling round the earth and satellites in orbit.